DATES 01-4-14 To 05-4-14 07-4-14 To 11-4-14 14-4-14 to 19-4-14 21-4-14 To 26-4-14 28-4-14 to 03-5-14 UNIT TEST ON 01.05.2014 CLASS – XII (Theory)-PHYSICS WEEK WISE SYLLABUS – 2014-15 CLASS – XII SUBJECT – PHYSICS CONTENT UNIT -1: ELECTROSTATICS : Electric Charges, Conservation of charges, coulomb’s law; force between two point charges; Force between multiple charges, superposition principle, continuous charge distribution, Electric Field, electric field due to a point charge, electric field lines. One activity related to topics discussed in the week Electric dipole, electric field due to dipole, torque on a dipole in uniform electric field, electric flux, statement of Gauss theorem and its applications to find field due to infinitely long straight wire; uniformly charges infinite plane sheet and uniformly charged thin spherical shell (field inside and outside) PSA practice One experiment related to topics discussed in the week Electric Potential, potential difference, electric potential due to point charge, a dipole and system of charges, equipotential surface, electric potential energy of a system of two point charges and of electric dipole in an electrostatic field, conductors and insulators, free charges and bound charge inside a conductor. Dielectric and electric polarization. One experiment related to topics discussed in the week Capacitors and capacitance in series and parallel, capacitance of a parallel plate capacitor with or without dielectric medium between the plates, energy stored in a capacitor ,NCERT exercise and value based questions UNIT-II CURRENT ELECTRICITY Electric current, flow of electric charges in a metallic conductor, drift velocity, mobility & their relation with electric current, Ohm’s law , electric Resistance, V-I Characteristics (Linear and Non-linear), electrical energy & power, electrical resistivity and conductivity PSA practice One experiment related to topics discussed in the week Carbon resistors ,colour code for carbon resistors, combination of resistors – series and parallel, temperature dependence of resistance, potential difference, emf and Internal resistance of a cell, combination of cells, in series and in parallel, Kirchhoff’s Law and simple applications. One experiment related to topics discussed in the week 1 05-5-14 To 09-5-14 11-5-13 to 30-6-13 01-7-14 To 05-7-14 07 -7-14 To 11-7-14 14-7-14 to 19-7-14 21-7-14 To 26-7-14 28-7-14 To 02-8-14 Wheatstone Bridge, metre Bridge, potentiometer – principle & its applications to measure potential difference and for comparing emf of two cells, measurement of internal resistance of a cell. NCERT exercise and value based questions , PSA practice One experiment related to topics discussed in the week SUMMER VACATIONS UNIT-III: MAGNETIC EFFECT OF CURRENT AND MAGNETISM : Concept of magnetic field and Oersted’s experiment, Biot-Savart law and its application to current carrying circular loop, Ampere’s Law & its application to infinitely long straight wire, straight and toroidal solenoids, force on a moving charge in uniform magnetic and electric fields One activity related to topics discussed in the week Cyclotron, force on a current carrying conductor in a uniform magnetic field, force between two parallel current carrying conductors, Definition of ampere, torque experienced by a current loop in a uniform magnetic field, moving coil galvanometer and its sensitivity and conversion to ammeter and voltmeter. PSA practice One experiment related to topics discussed in the week . Current loop as a magnetic dipole and its magnetic dipole moment Magnetic dipole moment of a revolving electron, Magnetic field Intensity due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis. Torque on a magnetic dipole (Bar magnet) in a uniform magnetic field, bar magnet as an equivalent solenoid, magnetic field lines. One experiment related to topics discussed in the week . YUVA Session 12.8, Chak De Burger! Earth’s Magnetic field and magnetic elements. Para-, dia-, and ferromagnetic substances with examples, Electromagnets and factors affecting their strength. Permanent magnets. NCERT exercise and value based questions. UNIT-IV: ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENT Electromagnetic Induction; Faraday’s laws, Induced emf. and current, Lenz’s law. PSA practice One activity related to topics discussed in the week Eddy Currents, self and mutual inductance, Alternating currents, Peak and RMS value of alternating current and voltage, reactance and impedance, LC-Oscillations (Qualitative Treatment only); LCR-series circuit, resonance. One experiment related to topics discussed in the week 2 04-08-14 To 08-08-14 UNIT TEST ON 07.08.2014 11-8-14 To 16-8-14 19-8-14 To 23-8-14 25-8-14 To 30-8-14 Power in ac-circuits , wattles current, AC generator, Transformers NCERT-Exercise and Value Based Questions. PSA practice .One activity related to topics discussed in the week UNIT –V: ELECTROMAGNETIC WAVES Need for displacement current; Electromagnetic waves and their characteristics (qualitative ideas only), transverse nature of E.M. waves,Electromagnetic spectrum(radio wave,microwave, infrared, visible, ultraviolet, X-rays, gamma rays.) including elementary facts about their uses. NCERT exercise and value based questions. UNIT –VI : OPTICS Reflection of light, spherical mirrors, mirror formula. One experiment related to topics discussed in the week Refraction of light, total internal reflection and its applications, optical fibers, refraction through spherical surfaces, lenses, thin lens formula, lens maker’s formula. Magnification, power of a lens, combination of thin lenses in contact, combination of a lens and a mirror. Refraction and dispersion of light through a prism PSA practice One experiment related to topics discussed in the week Scattering of light – blue colour of the sky and reddish appearance of the sun at sunrise and sunset. Optical Instruments : Microscope and astronomical telescopes (reflecting and refracting )and their magnifying powers. NCERT exercise and value based questions. One experiment related to topics discussed in the week Revision for SA I 01-9-14 to 6-9-14 08-9-14 TO 20-9-14 22-9-14 to 27-09-14 S.A. – I Discussion of SA – 1 Question Paper Wave optics: Wave front and Huygens’s Principle, reflection and refraction of plane waves at a plane surface using wave fronts. Proof of laws of reflection and refraction using Huygens’s principle. Interference, Young’s double slit experiment and expression for fringe width, coherent sources and sustained interference of light. PSA practice One experiment related to topics discussed in the week. . 3 29 -9-14 to 03-10-14 04 -10-14 To 10-10-14 13-10-14 to 18-10-14 20-10-14 to 25-10-14 27-10-14 to 1-11-14 UNIT TEST ON 30.10.2014 03-11-14 to 07-11-14 10-11-14 to 15-11-14 AUTUMN BREAK Diffraction due to a single slit, width of central maxima. Resolving power of microscopes and astronomical telescope. Polarization, plane polarized light, Brewster’s Law, uses of plane polarized light and Polaroid’s, NCERT exercise and value based questions One experiment related to topics discussed in the week UNIT –VII : DUAL NATURE OF MATTER : Dual Nature of Radiation; Photoelectric effect, Hertz and Lenard’s observations, Einstein’s photoelectric equation, particles nature of light.Matter waves- wave nature of particle. de Broglie relation, Davisson- Germer experiment (experimental details should be omitted, only conclusion should be explained) NCERT exercise and value based questions. UNIT –VIII : ATOM AND NUCLEI: Alpha particles, scattering experiment; Rutherford’s model of atom. PSA practice One activity related to topics discussed in the week Bohr model, Energy levels, Hydrogen spectrum, Composition and size of nucleus, Radioactivity, Alpha, Beta & Gamma particles/rays and their properties, radioactive decay law. Mass-Energy relation, mass defect, binding energy per nucleon and its variation with mass number, nuclear fission & nuclear fusion. NCERT exercise and value based questions UNIT – IX : ELECTRONIC DEVICES Energy band and solids (Qualitative Idea only) Conductors, insulator & Semiconductor, Semiconductor diode, I-V characteristics in forward biasing and reverse biasing, Diode as rectifier. PSA practice One experiment related to topics discussed in the week I-V Characteristics of LED, Photodiodes, Solar cell and Zener diode, Zener diode as voltage regulator, Junction transistor, Transistor action ,characteristics of a transistor ,Transistor as an amplifier (CE configuration). One experiment related to topics discussed in the week logic gates (OR, AND,NOT, NAND,NOR) NCERT exercise and value based questions UNIT –X : COMMUNICATION SYSTEMS : Elements of communication systems (Block diagram only); Bandwidth signals (Speech, TV and Digital data); Bandwidth of transmission medium. PSA practice 4 17-11-14 to 22-11-14 24-11-14 to 29-11-14 01-12-14 to 06-12-14 8-12-14 to 12-1214 15-12-14 to 20-12-14 22-12-14 to 24-12-14 26-12-14 to 15-01-15 16-01-15 to 17-1-15 19 -1-15 to 31-1-15 02-2-15 to 07-2-15 09-2-15 to 13-2-15 Propagation of EM waves in atmosphere, sky and space wave propagation, Need for modulation, Production and detection of an amplitude modulated wave,Basic idea about internet,mobile telephony and global positioning system(GPS) NCERT-Exercise and value based questions YUVA Session - 3.2 Choice not chance determines Destiny! REVISION FROM SUPPORT MATERIAL–Unit- 1, 2 REVISION FROM SUPPORT MATERIAL – Unit – 3 ,4 PSA practice REVISION FROM SUPPORT MATERIAL – Unit – 5 ,6 REVISION FROM SUPPORT MATERIAL - Unit – 7, 8 PSA practice REVISION FROM SUPPORT MATERIAL - Unit – 9 , 10 WINTER BREAK REVISION FOR PRE-BOARD EXAM (SAMPLE PAPERS & SUPPORT MATERIAL) PRE-BOARD EXAM. Discussion of pre-board question papers, practice from CBSE – sample papers, value based questions. BOARD PRACTICAL EXAM REVISION/BOARD PRACTICAL EXAM 16-2-15 to 21-2-15 REVISION - HOTS QUESTIONS 23-2-15 to 24-2-15 REVISION 25-2-15 to 31-3-15 BOARD EXAM. 5 Class – XII (PHYSICS) 2014-15 LIST OF PRACTICALS The record, to be submitted by the students, at the time of their annual examination, has to include:  Record of at least 15 Experiments (with a minimum of 8 from section A and 7 from section B) to be performed by the students.  Record of at least 5 Activities (with a minimum of 2 each from section A and section B), to be demonstrated by the teachers.  Report of the project to be carried out by the students SECTION – A Experiments:1. To determine resistance per cm of a given wire by plotting a graph of potential difference vs. current. 2. To find resistance of a given wire using metre bridge and hence determine the specific resistance of its material. 3. To verify the laws of combination (series/parallel) of resistances using a metre bridge. 4. To compare the emf of two given primary cells using potentiometer. 5. To determine the interval resistance of given primary cell using potentiometer. 6. To determine resistance of a galvanometer by half deflection method and to find its figure of merit. 7. To convert the given galvanometer (of known resistance and figure of merit) into an ammeter and voltmeter of desired range and to verify the same. 8. To find the frequency of the a.c. mains with a sonometer. 6 ACTIVITIES- (For the purpose of demonstration only) 1. To measure the resistance and impedance of an inductor with or without iron core. 2. To measure resistance, voltage (AC/DC), current (AC) and check continuity of a given circuit using multimeter. 3. To assemble or household circuit comprising three bulbs. Three (on/off) switches, a fuse and a power source. 4. To assemble the components of a given electrical circuit. 5. To study the variation in potential drop with length of a wire for a steady current. 6. To draw the diagram of a given open circuit comprising at a battery, resistor/rheostat, key, ammeter and volt meter. Mark the components that are not connected in proper order and correct the circuit and also the circuit diagram. SECTION – B Experiments:1. To find the value of (v) for different values of (u) in case of a concave mirror and to find focal (f) length. 2. To find the focal length of a convex lens by plotting graphs between (u) and (v) or between (1/u) and (1/v). 3. To find the focal length of a convex mirror, using a convex lens. 4. To find the focal length of a concave lens, using a convex lens. 5. To determine angle of minimum deviation for a given prism by plotting a graph between angle of incidence and angle of deviation. 6. To determine refractive index of a glass slab using a travelling microscope. 7. To find refractive index of a liquid by using (i) concave mirror, (ii) Convex lens and plane mirror. 8. To draw the I-V characteristics curve of a p-n junction in forward bias and reverse bias. 9. To draw the characteristics curve of a Zener diode and to determine its reverse breakdown voltage. 10. To study the characteristics of a common-emitter npn or pnp transistor and to find out the values of current and voltage gains. 7 ACTIVITIES (For the purpose of demonstration only) 1. To study effect of intensity of light (by varying distance of the source) on an L.D.R. 2. To identify a diode, an LED, a transistor and IC, a resistor and a capacitor from mixed collection of such items. 3. Use a multimeter to (i) Identify base of transistor (ii) Distinguish between npn and pnp type transistors (iii) see the unidirectional flow of current in case of a diode and LED (iv) Check whether a given electronic component (e.g. diode, transistor or IC) is in working order. 4. To observe refraction and lateral deviation of a beam of light incident obliquely on a glass slab. 5. To observe polarization of light using two polaroids. 6. To observe diffraction of light due to a thin slit. 7. To study the nature and size of the image formed by (i) Convex lens (ii) Concave mirror, on a screen by using a candle and a screen (for different distances of the candle from the lens/mirror). 8. To obtain a lens combination with the specified focal length by using two lenses from the given set of lenses. B. EVALUATION SCHEME FOR PRACTICAL EXAM 2014-15. Two experiments one from each section 8 + 8 marks Practical Record (Experiments & Activities) 6 Marks Investigatory project 3 Marks Viva on experiments activities and project 5 marks Total 30 marks Team Members 1. Mr Anil Kumar ,Lecturer (Physics), R.P.V.V. DWARKA SEC-10. 2. Mr. Manoj Sharma, Lecturer (PHYSICS), G.B.S.S.S. No- 1, NAJAFGARH. 8